UNIT 12 LESSON 14 Electrical Power Quiz

By the end of the session, learners should be able to describe the sources of which of the following?

• Mechanical power

• Electrical power

• Hydraulic power

• Nuclear power

What should learners be able to list regarding electrical installations?

• The color codes for wiring

• The voltage supplies

• The types of light bulbs used

• The insulation materials

What are learners expected to compare in terms of different voltages in BSE systems?

• The color and design

• The cost-effectiveness

• The advantages or otherwise

• The installation process

Which concept related to power distribution should learners understand?

• The concept of neutral and balanced supply

• The concept of power inversion

• The concept of electrical resistance

• The concept of energy conservation

What should learners be able to explain regarding electricity supply?

• The concept of single-phase electricity supply

• The concept of three-phase electricity supply

• The concept of direct current supply

• The concept of alternating current supply

What does AC stand for in the context of electrical current?

• Alternating current

• Actual current

• Aided current

• Amplified current

What type of devices typically use AC (alternating current)?

• Battery-operated devices

• Fridges and dishwashers

• Only industrial machines

• Only portable electronics

How is DC (direct current) typically obtained for use in devices such as TVs and computers?

• It is generated by a chemical reaction.

• It is supplied directly through the mains.

• It is converted from AC by the device.

• It is harvested from natural sources.

Where is AC (alternating current) commonly used?

• Only in domestic environments

• Only in commercial environments

• Only in industrial environments

• In domestic, commercial, and industrial environments

What does DC stand for in electrical terms?

• Direct current

• Dynamic current

• Diagonal current

• Dual current